A021010 - OEIS

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A021010 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`-1`
`2`		`1`
`3`		`1`
`4`		`-4`
`5`		`2`
`6`		`-1`
`7`		`9`
`8`		`-18`
`9`		`6`
`10`		`1`
`11`		`-16`
`12`		`72`
`13`		`-96`
`14`		`24`
`15`		`-1`
`16`		`25`
`17`		`-200`
`18`		`600`
`19`		`-600`
`20`		`120`
`21`		`1`
`22`		`-36`
`23`		`450`
`24`		`-2400`
`25`		`5400`
`26`		`-4320`
`27`		`720`
`28`		`-1`
`29`		`49`
`30`		`-882`
`31`		`7350`
`32`		`-29400`
`33`		`52920`
`34`		`-35280`
`35`		`5040`
`36`		`1`
`37`		`-64`
`38`		`1568`
`39`		`-18816`
`40`		`117600`
`41`		`-376320`
`42`		`564480`
`43`		`-322560`
`44`		`40320`
`45`		`-1`
`46`		`81`
`47`		`-2592`
`48`		`42336`
`49`		`-381024`
`50`		`1905120`
`51`		`-5080320`
`52`		`6531840`
`53`		`-3265920`
`54`		`362880`

[1,-1,1,1,-4,2,-1,9,-18,6,1,-16,72,-96,24,-1,25, -200,600,-600,120,1,-36,450,-2400,5400,-4320,720, -1,49,-882,7350,-29400,52920,-35280,5040,1,-64, 1568,-18816,117600,-376320,564480,-322560,40320, -1,81,-2592,42336,-381024,1905120,-5080320, 6531840,-3265920,362880]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)